532 GEOLOGICAL SURVEY OF THE TERRITORIES. 
EXPLANATION OF PLATE IX. 
BRANCHINECTA PALUDOSA with details. 
Fig. 1. Male, at, first antenne; at’, claspers, or second antennss: p, penis (gonopoda). 
Fig. 2. Female. This and Fig. 1 enlarged several times. 
Fia. 3. First foot of male, x 50 diameters. 
Fic. 4. Second foot of male, x 50 diameters. 
Fig. 5. Tenth foot of male, x 50 diameters. 
Fig, 6. End of abdomen, with the caudal appendages. 
Figs. 1 and 2 drawn by J. H. Emerton for Bessels’ report on the Voyage of the 
Polaris; kindly loaned by Dr, Emil Bessels. Figs. 3-6 drawn and filled in with the 
camera lucida by the author. 
